Samsung Galaxy S21 Ultra vs OPPO Reno 15 5G
Quick Comparison
Samsung Galaxy S21 Ultra has better RAM than OPPO Reno 15 5G. In terms of display resolution, Samsung Galaxy S21 Ultra has better resolution of 3200 x 1440 than OPPO Reno 15 5G which has resolution of 2760 x 1256. Both have the same amount of internal memory.
| Name | Samsung Galaxy S21 Ultra | OPPO Reno 15 5G |
| RAM | 12 GB | 8 GB |
|---|---|---|
| Display | 6.8 in | 6.59 in |
| Internal Memory | 256 GB | 256 GB |
| Battery | 5000 mAh | 6500 mAh |
| Camera | 108 MP Quad | 50 MP + 50 MP + 8 MP Triple |
| Price | Rs. 47990 | Rs. 45999 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is January 14, 2021. The cost of Samsung Galaxy S21 Ultra is Rs. 47990. The launch Date of the second phone is December 02, 2025. The cost of OPPO Reno 15 5G is Rs. 45999.
Display comparison
Samsung Galaxy S21 Ultra has larger screen size of 6.8 inches in comparison to OPPO Reno 15 5G's 6.59 inch screen. Samsung Galaxy S21 Ultra has Screen type where as OPPO Reno 15 5G has AMOLED Screen type. Samsung's phone has display density of 515 PPI & OPPO's phone has only 460 PPI display density. In terms of screen to body ratio, OPPO's phone has better screen to body ratio of ~ 93.4% than Samsung's phone ~ 89.8%. Samsung Galaxy S21 Ultra has 20:9 aspect ratio where as OPPO Reno 15 5G has 19.5:9 aspect ratio.
Memory comparison
Samsung Galaxy S21 Ultra's larger 12 GB RAM is better for playing games and all with respect to OPPO Reno 15 5G's lower 8 GB RAM. and both have same Internal Memory of 256 GB.
Camera comparison
Samsung Galaxy S21 Ultra's 108 MP Quad Rear Camera outclasses OPPO Reno 15 5G's 50 MP + 50 MP + 8 MP Triple Rear Camera in terms of resolution. OPPO Reno 15 5G will be better choice if you're looking to click lot of selfies as it has better 50 MP Front Camera in comparison to Samsung Galaxy S21 Ultra's 40 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 10 and the second one on 16 version.
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Full Comparison
| Name | Samsung Galaxy S21 Ultra | OPPO Reno 15 5G |
| General | ||
| Country of Origin | India | |
| Model | Galaxy S21 Ultra 5G | CPH2825 |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | January 14, 2021 | December 02, 2025 |
| Design | ||
| Dimensions | 75.6 x 165.1 x 8.9 mm | 74.8 x 158 x 7.8 mm |
| Weight | 227 g | 197 g |
| Colors | Aurora Blue, Twilight Blue, Aurora White | |
| Display | ||
| Type | Color Dynamic AMOLED 2X (16M Colors) | Color AMOLED Screen (1B Colors) |
| Touch | Yes | Yes, 240 Hz Touch Sampling Rate |
| Size | 6.8 inches, 1440 x 3200 pixels, 120 Hz | 6.59 inches, 1256 x 2760 pixels, 120 Hz |
| Aspect Ratio | 20:9 | 19.5:9 |
| PPI | ~ 515 PPI | ~ 460 PPI |
| Screen to Body Ratio | ~ 89.8% | ~ 93.4% |
| Glass Type | Corning Gorilla Glass Victus | Corning Gorilla GG7i Glass+ |
| Brightness | Normal brightness: 600nits (Typical) HBM: 1200nits (Typical), 3600 nits (peak) | |
| Features | Always-on Display, HDR10+, Curved Display | Standard Mode: 100% DCI-P3 Natural Mode: 100% DCI-P3 Vivid Mode: 100% DCI-P3 |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Curved Display | Yes | |
| Memory | ||
| RAM | 12 GB | 8 GB |
| RAM Type | LPDDR5X | |
| Expandable RAM | Upto 8 GB Extra Virtual RAM | |
| Storage | 256 GB | 256 GB |
| Storage Type | UFS 3.1 | UFS 3.1 |
| Card Slot | No | |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi 7 | |
| Bluetooth | Yes, v5.2, A2DP, LE | Yes, v5.4, A2DP, LE, aptX HD |
| USB | Yes, USB-C v3.2 | Yes, USB-C v2.0 |
| USB Features | USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| IR Blaster | Yes | |
| Performance | ||
| AnTuTu Score | 1,433,365 (Total) (v11) 495,227 (CPU) 326,572 (GPU) 244,893 (Memory) 366,673 (UX) | |
| AnTuTu Storage Score | 114,536 Sequential Read: 2226 MB/s; Sequential Write: 1885 MB/s | |
| Geekbench Score | 4,105 (Multi Core) (v6) 1,247 (Single Core) 3,385 (OpenCL) 5,679 (Vulkan) | |
| 3DMark Score | 1,506 (Wild Life Extreme) (9.02 FPS) | |
| Extra | ||
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO | Yes, with A-GPS, GLONASS, BDS, GALILEO, QZSS |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Gyro, Proximity, Compass, Barometer | Accelerometer, Gyro, Proximity, Compass |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | |
| Water Resistance | Yes, 1.5 m upto 30 min | Yes, 1.5 m upto 30 min |
| IP Rating | IP68 | IP68 |
| Dust Resistant | Yes | Yes |
| Camera | ||
| Rear Camera | 108 MP ƒ/1.8 10 MP ƒ/4.9 (Telephoto) 10 MP ƒ/2.4 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) | 50 MP ƒ/1.8 (Wide Angle) FOV 79°; 5P lens; AF supported; Supports 2-axis OIS 50 MP ƒ/2.8 (Telephoto) FOV 30°; 4P lens; AF supported; Supports 2-axis OIS, 3.5x 8 MP ƒ/2.2 (Ultra Wide) Ultra Wide Selfie Camera with 100° FOV |
| OIS | Yes | Yes |
| Auto Focus | Yes | Yes |
| Features | Auto-HDR, Panorama | Photo, Video, Portrait, Night, PRO, Panorama, SLO-MO, Dual-view video, TIME-LAPSE, STICKER, HI-RES, Google Lens, Underwater, Text Scanner, Doc Scanner, Movie |
| Video Recording | 8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 240/30/60 fps FHD, 720p @ 960 fps HD | 4K @ 60 fps UHD, 1080p @ 60 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 40 MP ƒ/2.2 (Wide Angle) Punch Hole, Autofocus | 50 MP ƒ/2 (Ultra Wide) Punch Hole |
| Front Video Recording | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD | 4K @ 60 fps UHD, 1080p @ 60 fps FHD |
| Technical | ||
| OS | Android v10 | Android v16 |
| Custom UI | ColorOS 16 | |
| Chipset | Samsung Exynos 2100 | Qualcomm Snapdragon 7 Gen4 |
| CPU | 2.9 GHz, Octa Core Processor | 2.8 GHz, Octa Core Processor |
| Core Details | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 | 1x Prime Core@ 2.8 GHz& 4 Performance Cores@ 2.4 GHz & 3x Efficiency Cores@ 1.8 GHz |
| Fabrication Node | TSMC 4nm | |
| GPU | Mali-G78 MP14 | Adreno 722 |
| NPU | Qualcomm Hexagon NPU | |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | No | No |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5000 mAh, Li-Po Battery | 6500 mAh |
| Fast Charging | Yes, 25W Fast Charging | Yes, 80W Fast Charging |
| Wireless Charging | Yes, 15W | |
| Reverse Charging | Yes, 4.5W | Yes |